Thursday, 26 February 2015

Trail Bikes Oil Cooler Kit Installation Guide (Part I)

The Trail Bikes Oil Cooler Kit is a high quality accessory designed to help your Honda horizontal engine or Honda clone engine keep cooler.  Air-cooled engines run hotter when modified or subjected to heavy loads such as racing use.  This kit will help your engine’s durability and reliability by circulating the engine oil through a cooler reducing the engine’s oil temperature.  It is highly recommend that you completely read through the installation instructions before you begin.

WARNING!!!
The installation of aftermarket accessories such as this oil cooler kit may void your manufacturer’s warranty. Trail Bikes is not responsible in any way for such voids.

WARNING!!!
This guide is for illustration purposes only.  All engine work should be performed by a trained professional mechanic and in accordance to factory recommendations.  Improper installation could result in extensive engine damage.  Use this guide for reference only.  Any and all instructions provided are suggestions for the professional mechanic.

 


Step 1.   Remove oil cooler from box and examine the two mounting brackets included in the kit.  The bracket attached to the cooler is made to slip over your cylinder studs as the illustration shows above.
The other bracket is designed to attach to the frame as the illustration shows below.  The brackets provided in this kit are designed to work on multiple applications and you will need to determine what works best for your application.  If you have the option to use either on your application, we recommend using the frame mounted bracket setup.

 

It is best to locate a spot on the bike that is towards the front of the bike where air will travel across the cooler as the bike is traveling forward.  Once a good spot has been located, attach your mounting bracket of choice. Only hand tighten the cylinder studs or the hose clamp provided for the other mounting bracket.  At this time you will  “mock up” the installation and make sure that the oil cooler lines will be long enough to reach the cooler and that the lines will not have to make any extreme bends which would restrict oil flow. (Please note that the cooler can be installed upside down if necessary, the oil lines can be at the top or bottom of the cooler)
Turn the wheel lock to lock and compress the suspension fully making sure nothing will come in contact with the cooler or the lines.
If everything looks like it is going to clear, proceed to step 2.



Step 2. Mount the oil cooler in the selected location using the mounting bracket of choice.  The illustration above shows the cooler being mounted with the bracket that slips over the cylinder studs.  Be sure to re-torque the cylinder studs to your manufactures specification if you choose this method.  The torque rating is 8ft lbs for a factory Honda engine.

The illustration below shows the oil cooler mounted to the frame using the other bracket provided. This mounting bracket is attached to the frame using a hose clamp and is the better choice if it can be used on your application.  For a stronger and more reliable mount you can also drill and tap a hole in the frame.  The bracket has a clearance hole in it already. This would be the preferred mounting method if applicable.

Friday, 6 February 2015

7 Reasons to Purchase an Air Cooler

A. Health Benefits.

Some forms of air coolers, present consolation to individuals with allergic reactions and respiratory issues, in addition to aged individuals and kids. Some swamp coolers are perfect for individuals allergy symptoms and different respiratory circumstances. These such coolers draw exterior air into the constructing. Once inside, the air is cooled by evaporation after which circulated. This exercise gives a continuing provide of filtered, contemporary air. This course of is completely different from air con models, which recirculate outdated air. Air coolers draw moisture into dry indoor air, rising humidity whereas decreasing the air temperature.

B. Environmentally Friendly.

Powered by the pure strategy of evaporation, evaporative coolers don't depend on extraordinarily massive quantities of electrical energy and chemical-based mostly coolants, like Freon. Swamp cooler can present power financial savings and environmental advantages that may probably decrease your indoor air temperature by as a lot as 30 levels Fahrenheit. Swamp coolers use a couple of quater of the power utilized by an air conditioner or central air unit. Even probably the most complicated residential swamp cooler system will makes use of considerably much less vitality than an air-con unit.

C. Save Money on Your Cooling Bill.

If your objective is to save cash in your utility payments and scale back your cooling prices, then an evaporative cooler or swamp cooler could also be for you. An evaporative cooler, such because the Schaefer Waycool S/A HP Oscillating Cooler makes use of solely 1 / 4 of the power utilized by refrigerated air conditioners. the associated fee to function an evaporative air cooler or swamp cooler is comparatively cheaper than different cooling strategies.

D. Affordable.

An air cooler prices solely a fraction of the price of a central air unit, starting from $one hundred for a conveyable unit to $A,000 for a big industrial unit. Additionally,the low price of set up, is about half the price of putting in a central air unit.

E. Easy to Install.

Because of its easy design, it's pretty simple and cheap to put in an evaporative cooler.

F. It's Also a Humidifier.

Evaporative air coolers even have the power to humidify dry air, as moist pads are used to chill the air. With this, you can be glad to know that your furnishings and materials will likely be saved effectively moisturized too. This will certainly assist keep the sturdiness and lifespan of your furnishings.

G. Easy Maintenance.

Easy upkeep is without doubt one of the finest causes for getting an evaporative cooler. All coolers include refillable water tanks that are simply accessible. A full tank lasts about 10 hours. If you require an extended operational interval, think about an cooler with a hose connection which repeatedly provides recent water to the cooler. All air cooler filters may be eliminated and rinsed.

More commercial air cooler for marine industry, visit www.heatecholdings.com

How to Choose a Portable Air Cooler

When seeking to preserve the house cool in summer time many individuals look in direction of the transportable air cooler to realize this, there are various advantages from utilizing an air cooler in comparison with an air conditioner.

One profit is the electrical energy these items really use when working, this may be a lot decrease utilization in comparison with the transportable air conditioner. This means cheaper electrical payments which everyone seems to be searching for as of late, with the price of fueling our houses rising everyone seems to be looking for probably the most economical strategy to warmth and funky their properties.

Another factor to understand in regards to the transportable air cooler is that it'll solely cool a sure space of the room, they don't seem to be designed to chill the entire space like air conditioners are. This is a bonus for the cooler as you'll be able to situate it near an individual to get most cooling, there isn't a level cooling the entire room down when it's you that wants preserving cool.

A lot of individuals today are involved with the hurt to the atmosphere these types of machines really trigger, effectively the air cooler causes no hurt because it doesn't use gasoline or another type of chemical compounds within the cooling course of. It truly makes use of chilly moist pads contained in the machine which sizzling air is drawn over after which blown out as chilly air, this can be a easy course of however very efficient when utilized in dry low humidity areas.

Another side of the moveable air coolers is that they use evaporation to chill the air, this method makes use of far much less electrical energy than different air con models. The coolers are additionally recognized to take away pet dander, mud, and musty smells from the room they're working in, thus making your house a way more pleasant atmosphere to dwell in for all of the household.

A main concern with most individuals is the precise price of those items, they assume they price an unlimited amount of cash to purchase, this isn't the case with the moveable air cooler as they're very fairly priced and the cash you'll save in your electrical energy payments after just a few months of use will nearly cowl the price of the unit.

So if you're on the lookout for an environment friendly technique to maintain your self cool throughout these sizzling summer season months, then go surfing and perform a little research into the various various kinds of moveable air cooler accessible in the present day.

More choice of air cooler for marine services.

Air Cooler - Advantages Versus Portable Air Condition

If you're in search of a room air conditioner however are not sure whether or not a air cooler, also referred to as an evaporative air cooler, or if a correct, transportable air situation unit could be a greater match for you, then on this article we are going to go over a number of benefits of air cooler that make it fairly engaging as in contrast with a daily moveable air situation unit. The benefits are - it's straightforward to grasp how the cooling works, it would cool solely a specific space of the room, and cooling requires no vents or hoses in any respect, and is straightforward and economical to function. For the nice measure, we'll point out the primary disadvantages as properly that are: cooling is not going to work in states with excessive humidity and it'll not cool your complete room.

Advantages

The operation of air coolers is straightforward to know

Indeed, there may be actually not a lot to it. The dry scorching air is blown over the water. Since the method of taking over water requires warmth, the air is cooled and humidified on the similar time. Then the humid air is circulated, and finally blended with the brand new incoming sizzling and dry air, and the method is repeated.

Air cooling will solely cool a specific space of the room

Since there is no such thing as a internet warmth loss, aside from as a lot moist air that manages to flee from the room, the general temperature of the room is just not a lot modified. Only the world the place the moist air is directed from the air cooler will likely be pleasantly cooler, by as a lot as ten to fifteen levels Fahrenheit. This characteristic of a evaporated air cooler can be utilized to your benefit.

Air cooling requires no vents or hoses to function

Due to the simplistic method the evaporated coolers function, and since there is no such thing as a directed warmth transport circuit, there are not any hoses or vents wanted. No must open the home windows both. No want certainly even to have home windows.

Coolers are straightforward and quiet to function

As there are not any compressors, solely the followers, air coolers take up little power, as little as a 60 W mild bulb, and are usually quiet when operating.

Disadvantages

Air con won't work in locations with excessive humidity

Due to the straightforward operation of air coolers described above, they won't work when the humidity of the air is already excessive. The air that blows over the water merely cannot settle for any extra moisture, and due to this fact cannot quiet down. That is why coolers are additionally known as dry air coolers. The common humidity of 38 % is quoted as nonetheless acceptable for the operation of a air cooler. The states that simply meet that restrict are Arizona, New Mexico, Nevada, and Southern California.

Air con won't cool the whole room

We talked about that earlier as a bonus of evaporative cooling. You can cool simply the components of the room the place you're. However, when there are extra individuals within the room, you typically would wish to settle down your entire room. Even the very best evaporative air cooler can't do this. In distinction, a transportable air situation unit is well able to cooling your complete room when its vents are configured as directed.

More air cooler information over here.

Thursday, 5 February 2015

Thermal Design specifications and properties of electronic components and materials (Part 2)



The modelling technics currently used have at least two different methods for creating real models for thermal design. One method uses direct geometrical/material analyses to make thermal model for components and the other method uses thermal resistor/capa-citor networks for example the DELPHI-project. Both of these methods should be possible in component level specifications.

The European co-operative project DELPHI /Rosten et al/ is an example of an activity where the responsibility of the thermal design has been attempted to be shared between the supplier of component and the end user.

The specification system for thermal specifications of electronic components and sub-systems and the applicable tests/measurement methods should cover following areas:

- Component specifications
- Interface specimens and materials (heat conducting specimens, thermally conductive insulators) and their specifications and models
- Subsystems (Printed circuit boards, units, rails)
- Heat sinks and fans.
- Material specifications (materials of components and other parts of electronics)

Some guidelines are needed for the thermal specification of PCB and subsystem level. It should be kept in mind that all relevant heat transfer mechanisms are treated, conduction, convection and radiation, when components are positioned on PCB. Monitoring the work of existing groups generating thermal models - DELPHI, SEED, JEDEC; SEMI, and standardising these different methods will be an important task for this research project and CENELEC.

REFERENCE

1. Rosten, H.I. et al. Final report to SEMITHERM XIII on the European-funded project DELPHI - the Development of libraries and physical models for an inte-grated design environment.
Thirteenth Annual IEEE Semiconductor Thermal Measurement and Management Symposium, Austin, TX, USA, 1997. Pp. 73 - 91.
2. Vinke, H. & Lasance, C.J.M. Recent achievements in the thermal characteriza¬tion of electronic devices by means of boundary condition independent compact models.
Thirteenth Annual IEEE Semiconductor-Thermal Measurement and Management Symposium, Austin, TX, USA, 1997. s. 32 - 39

1. ECONOMIC AND SOCIAL BENEFITS

A good thermal design of electronics is crucial on the reliable and safe operation of equip¬ment. The current situation makes it difficult to design electronics effectively because of the lack of standardised thermal specifications of electronic components and heat conducting materials. The ever increasing power density of electronics causes large difficulties for the designers who need more accurate and reliable information of thermal properties. The existence of standards could make it much more economical to make good thermal design.

2. SCIENTIFIC AND TECHNOLOGICAL OBJECTIVES

The RTD work-programme should contain the following tasks:

1. Definition of specifications of the thermal properties of electronic components

1.1 Parameters

Definition of the specific thermal parameters concerning thermal design of components, assembled printed wiring boards, materials and test methods.

1.2 Units

Units (and symbols) of the thermal parameters concerning thermal behavior and also design of components, assembled printed wiring boards and various materials shall be defined.

2. Thermal specifications of electronic components and interface parts

2.1 Evaluation of various package types of electronic components

Evaluation of package types used in electronic components shall cover such packages which probably have use also in the future. Evaluation concentrates on finding possibilities to use some simplified geometric thermal model for these package types. Therefore the project has to find and develop some principles how such simpilification should be done.

2.2. PBGA-package evaluation of simplification of detailed geometric models

The objective is to develop methodology for deciding what level of geometric simplification is practical in modelling thermal properties of Plastic ball grid array packages (PBGA). The project includes comparing the simplified models to accurate geometric model of this package type by using simulations and testing.

2.3 Resistor package geometric model

The effect of mounting method of resistors on temperature of the component itself. Developing description of some standardised mounting methods.

2.4 Description of heat sink thermal properties

Develop a method for describing thermal behaviour of heat sinks by using effective heat transfer surface area  for the component instead of using the thermal model of heat sink. This kind of scaling factor reduces the size of accurate thermal model considerably.

3. Thermal specifications of materials used in electronic components

3.1 Material types

Selection of basic material types, how to manage specification for
- construction materials
- interface materials, glues, adhesives, plates

Metals, plastics, ceramics, adhesives, glues, printed wiring board materials, other conductive materials, powder metals, composites

3.2 Basic properties of various materials

- Standard definition of various properties (use of other standards)
- Description of specification for various basic material types
- Effect of surface contact resistance on thermal properties
Thermal conductivity, thermal resistance, contact resistance at surface, thermal capacitance, specific heat, emissivity, density, coefficient of thermal expansion, surface properties (roughness), etc.

3.3. Test methods of thermal properties of materials

- Comparison and further development of test methods
- Selection of test methods to measure various material types

7. TIME SCALE

Although no rigid time scale requirements apply to this project, based on the described objectives, the whole project should be completed within three years maximum.

8. IMPORTANT ADDITIONAL INFORMATION

To get a reasonable amount of progress in this area, a minimum of three intrested parties is necessary.

Close connections with CENELEC should be demonstrated in the proposal, and ensured during the proposed workplan, in order to properly match the requirements of industry and the evolution of technology.


Wednesday, 4 February 2015

Thermal specifications and properties of electronic components and materials (Part 1)

1. CONFORMITY WITH THE WORK PROGRAMME

This topic falls under the Competitive and Sustainable Growth Programme, generic activity Measurement and Testing.  Specifically, it is related to Objective GROW-2000-6.2.1 Methodologies to Support Standardisation and Community Policies for which expressions of interest have been called.

2. KEYWORDS

Thermal specification, thermal design, electronic component, modelling, thermal interface, properties of materials, design rule, test method, standardisation.

3. SUMMARY OF OBJECTIVES AND JUSTIFICATION

Controlled thermal design of electronic equipment is currently a very important area of electronic design. This is because the dissipated power densities of modern electronic chips have now reached such a high level that advanced heat transfer systems are needed. However there currently exists very little standardised information about the thermal properties of various electronic components and materials, or the test methods for verify¬ing these thermal properties.

With the new standardised specifications, models and test methods the users and designers of electronic equipment could get better, compatible and more realistic description of the thermal behavior of electronic equipment. Design time reduction and better accuracy can be achieved by using more effective and harmonized thermal models and specifications of electronic components and of heat conducting materials.

4. BACKGROUND

Controlled thermal design of electronic equipment is currently a very important area of electronic design. This is because the dissipated power densities of modern electronic chips have now reached such a high level that advanced heat transfer systems are needed.
However, there currently exists very little standardised information about the thermal properties of various electronic components and materials, or the test methods for verify¬ing these thermal properties. In CENELEC there are no standards for the thermal design of electronic equipment and components.

With regard to standardisation, the technical development of thermal models for compo-nents, and thermal simulation methods are advanced enough, to be used for better

thermal specifications for electronic components. Recent studies performed in Europe by DELPHI and SEED projects (DELPHI = Development of Libraries of Physical models for an Integrated design environment, SEED = Supplier Evaluation and Exploitation of DELPHI, SEED is European ESPRIT project) and the published documents by JEDEC and SEMI will help when starting specification work at CENELEC. In the International Electrotechnical Commission (IEC) there are not any activities on this area yet.

The information sources of thermal data for the manufacturer of electronic equipment are material suppliers and component suppliers. Using both of these channels the equipment designer should get reasonable thermal data. To improve this data flow from supplier to equipment manufacturer, some standardised specification system is needed. CENELEC is the most suitable organisation to co-ordinate this task.


On the following page there is a key figure illustrating ideas on how to manage the basic thermal design specification parameters which should be addressed when specifying an elec-tronic component. In these specifications it is very important, to cover all the applicable heat transfer mechanisms: thermal conduction, convection and radiation.

It is also important to describe every component type by the actual feasible method (which is also measurable) to be used in verification of given parameter values in various models.


How to manage thermal properties of electronic components?



Click here to find out more about thermal design.

Tuesday, 3 February 2015

Thermal Design Objective for Spacecraft




The basic purpose of thermal design is to maintain the temperature of all spacecraft components within desired limits.  We also wish to minimize the temperature fluctuation (thermal cycling) that the spacecraft components are subjected to.  FalconSat-2’s internal components, which are the most thermally sensitive parts of the satellite, are fairly thermally decoupled from the external heat flux the satellite is subjected to.  This is due to the design with the inner column and outer structural shell.  This allows us to control the temperature with a passive thermal design approach.  We will modify the thermo-optical properties (absorptivity and emissivity values) of the external facets of the satellite so that the satellite and all components are maintained within the optimal temperature range.

On FalconSat-2, the operational temperatures are limited by the electronic components within the satellite, and specifically by the battery.  The battery is the most thermally sensitive of the satellite subsystems because it cannot be recharged below 0˚C.  As a result, the nominal temperature range targeted for the batteries and internal components of FalconSat-2 is +5 to +30 deg C.  The other commercial electronics within the satellite have temperature limits of –40 and +85 deg C.  The structural components and solar panels have much more relaxed temperature limits.  Table 1 lists the temperature limits for FalconSat-2.

Table 1 – Temperature limits for FalconSat-2 subsystems


To design the thermal subsystem and ensure that FalconSat-2 will meet these temperature limits, we had to first simulate the thermal behavior of the satellite.  This will allow us to see how the satellite will behave without any thermal control implemented, which will in turn show us what design we must implement to meet the temperature range requirements.  In order to simulate the satellite’s thermal behavior, a model had to be created.

We require a detailed thermal model of FalconSat-2 for several reasons.  Primarily, we need to simulate expected on-orbit thermal behavior of the satellite and ensure that no spacecraft components exceed their maximum or minimum temperature limits.  We also need to ensure that the temperature fluctuation (thermal cycling) of all spacecraft components is minimized.  By simulating varying on-orbit scenarios, including varying attitude modes and varying subsystem operation modes, we can also simulate worst-case hot and worst-case cold temperature scenarios.  Furthermore, we wish to use the thermal model to simulate testing environments that we will subject the satellite to at various phases throughout the development.  Furthermore, we wish to integrate the thermal model into an overall behavioral model of the satellite to assess the interaction of the thermal design with the rest of the satellite.

The inputs to the flux history calculation routine are the satellite’s epoch classical orbital elements, epoch date and Universal Time, the satellite’s attitude control method (Sun-tracking, velocity tracking, tumbling, or quaternions), and the time of flight taken from the simulation clock.  The outputs are insolation, Earth infrared, and albedo fluxes for each face with respect to time for an entire orbit.

The flux history calculation model is broken into five modules within MatLab.  These modules, along with their inputs and outputs, are discussed here:

COE Update--This module updates the classical orbital elements (COEs) from the epoch time to the current simulation time. Inputs are the epoch COEs, the epoch date and time, and the time of flight, taken from the MatLab simulation clock.  This module outputs updated COEs for the satellite and the current Julian date.

Light--This module calculates the sun position vector, the satellite position and velocity vectors, and whether or not the sun currently illuminates the satellite.  Inputs are the current COEs and Julian date.  Outputs are the satellite position vector (R), satellite velocity vector (V), sun position vector (Rsun), illumination flag (Vis) and satellite/sun Beta angle.

Surface Normals--This module calculates the surface normal vectors of each of the six faces of the satellite.  This routine is used if the satellite is sun-tracking, velocity-tracking, or randomly tumbling.  There is a switch where the user can choose which tracking mode to use.  Alternatively, the surface normal vectors can be calculated using quaternions from an interface with Satellite Tool Kit.  There is a switch that allows the user to choose which method of calculating the surface normal vectors they would like to use.  Inputs are the satellite position vector (R), satellite velocity vector (V), sun position vector (Rsun), illumination flag (Vis) and satellite/sun Beta angle.  Outputs from the module are the surface normal vectors for each face of the satellite, the angle from the +K axis to the satellite R vector (phi), and the angle from the +I axis to the satellite R vector (theta).

Insolation--This module calculates the insolation flux on each of the six faces of the.  Its inputs are the surface normal vectors, sun position vector, and illumination flag.  It outputs the insolation flux on each face in Wm-2 in both graphical and matrix form.

Earth Effects--This module calculates the Earth Infrared and Albedo flux on each of the six faces of the satellite.  This part of the model takes the longest time, as there is a double discrete summation to calculate the Earth IR and Albedo view factors for each face of the satellite.  Inputs are the surface normal vectors for each face of the satellite, the satellite position vector (R), the sun position vector (Rsun), the angle from the +K axis to the satellite R vector (phi), and the angle from the +I axis to the satellite R vector (theta).  It outputs the Earth infrared and Albedo flux on each face in Wm-2 in both graphical and matrix form.

You can read more about thermal design here.