Entransy And Heat Loss Analysis

For our undergraduate project, we chose to work on something that excited the group intellectually - energy efficient thermal processes. We addressed the problem of high cell temperatures in solar photovoltaic panels by developing a unique cooling technology that increased their efficiency. The project won the First Prize in the annual project exhibition held by the Department of Mechanical Engineering. We recorded the surface temperatures and current outputs for an experimental and a reference solar panel at Bharat Heavy Electricals Limited, Bangalore. The experimental panel was cooled using a ceramic Cordierite honeycomb structure as the cooling module fitted to its rear face and water as the coolant. The cooling mechanism is based on the principle of a ‘ceramic heat pipe wick’

Today’s Designers, Architects and Constructors have a duty of care to strive to produce energy efficient and energy saving buildings. Where possible the sustainability of resources / materials and techniques must be a primary concern in the decision making process.

In order to understand the word ‘thermal’ within a building, then SHGC which is solar heat gain coefficients had to be known to known the property of thermal insulation and conductivity in a whole manner. Solar heat gain coefficient is widely use in the United State in designing building. SHGC may refer to the transmittance of solar energy of windows or even walls, every object can be evaluate by using solar heat gain coefficient method by knowing the properties of each material. If a material have high solar heat gain coefficient, then the material is a good absorbent of solar heat. For material that is black in colour, inevitably it absorb heat faster because of the colour doesn’t reflect the wavelength that comes directly from the source of light. So, low-e components of a building that comes with low solar heat gain coefficient will reflect and keep heat source that came from sun away from the house and that will probably makes a house cooler. Solar heat gain coefficient usually dealt with windows that possess a low-e property. Low-e may regard to the emissivity of one’s material. Nowadays window mostly is transparent, and that makes it vulnerable for sunlight to penetrate easily into a house without any reflection. We have to be notice that if a window is place facing the unsuitable direction such as west or east, it will have an adverse effect towards the thermal comfort of a house especially terraced house in Malaysia that cant undergoes renovation due to the

Compare heat transmission in different materials (e.g., conduction of heat in different solids, absorption of radiant heat by different

absorbed by water, where S refer to the heat capacity of water (1.00 Cal/g/˚C). Where g is the

This is why my partner and i have decided to build our OWN cup made out of eco friendly materials. Now you might be asking, why did you BUILD your own cup? Well fellow citizen, i COULD waste 7 dollars on a decorated cup, but i’d rather MAKE my own cup knowing what it’s made out of. One key element that was needed for our cup was a good insulator. An insulator is a material of such low conductivity that

Society is heavily reliant on fire. It provides warmth, lighting, and is used to prepare food. Fire allowed humans to move from the cave to the modern age. When it is used safely it is an invaluable tool but when it is abused or not used appropriately it destroys life and property. As society became more modern, so did the need for an organized fire department. Despite the best efforts from fire departments to educate the public about fire safety, the loss of life and property damage stills occurs to this day. When a fire occurs, fire departments suppress the fire and a fire investigator typically investigate the fire in order to attempt to determine the cause and origin. The investigator knows that fire dynamics is derived from the combined disciplines of physics, thermodynamics, chemistry, heat transfer, and fluid mechanics (Icove, DeHaan, & Haynes, 2013). They also must understand how a fires behavior is influenced by factors such as fuel loads, ventilation, and physical configuration of the room (Icove et al., 2013).

Rigid foam and sprayed foam insulation materials which are shown in table 5, have high embodied energy, meaning the product uses more energy and fossil fuels to be manufactured and

Many of our customers are concerned with the environment, and at Canadian Comfort Windows & Doors, we certainly encourage this trend. However, even if you are not particularly interested in maintaining a home that is as green as possible, you probably want to keep your energy bills low. You can achieve this objective in a variety of ways, and ensuring proper insulation is one of them. You may have already begun to insulate your doors and windows for

[4] Engineeringtoolbox.com, 'Thermal Conductivity of some common Materials and Gases', 2015. [Online]. Available: http://www.engineeringtoolbox.com/thermal-conductivity-d_429.html. [Accessed: 20- Jul- 2015].

High albedo, high emittance surfaces create a roof that transfers very little energy to the living space below, and the effect can be further enhanced by ensuring that the proper amount of insulation is used under the roof. A cool roof with proper insulation can make a tremendous impact on cooling costs, and over the long term the savings may more than pay for the initial

But it would not serve you well in hot climates. In warm countries, where the sun shines throughout the daytime; radiation is the form of heat transfer. Which means you need something that can reflect the heat rays. Bulk Insulation is not the right type for this purpose, and reflective insulation should be your choice. Some manufacturers now manufacture thick insulation with a reflective layer on one side. Anyway, the effectiveness of them is not clear yet.

Investigate a factor that affects the rate of heat loss from a body Introduction Heat is transferred to the animal by the sun’s electromagnet waves it gives off (by the radiation it emits). Small animals do not have the capability to retain heat as efficiently as bigger animals have. This is because the smaller animal has a greater surface area to volume ratio so it will lose heat faster compared to the bigger animal, as there is more surface area for the body heat to escape to the surrounding (through the skin).The surface area to volume ratio of an animal (or an object) is its surface area proportional to its volume. Bigger animals (such as polar bears) have a smaller surface area to volume ratio, while smaller animals have a bigger surface

In our physical world, there are a multitude of phenomenon that occur daily that we experience that often go unnoticed. It contains a vast array of conceptual applications and the equations applied to them in order to better explain and calculate the phenomenon involved. In a normal occurrence an individual can explain and calculate certain aspects of movement and processes that are also involved with it. When dealing with the transferring of heat and various process related to heat, the terms convection, conduction and radiation are frequently discussed thoroughly. The overall field of thermodynamics involves the study of thermal processes in physical systems. Some terms involved with these particular concepts include: closed system, empirical law, free energy, joule’s law, specific, temperature, and thermodynamics. The general defined term of convection is “the heat transfer by mass motion of a fluid such as air or water when the heated fluid is caused to move away from the source of heat, carrying energy with it” (Georgia State University). “In the world of physics, the term conduction is usually defined as a form of heat transfer by the way of molecular tension inside an object or material that does not show any individual motion in its entirety” (Georgia State University). Radiation by means of physics related terms is defined as “the emission or transmission of energy in the form of waves or particles through a

Gas boosted solar hot water system (2,600 kwh) along with insulation in ceiling and wall (1,500 kwh) and make a minimum total of 4,100 kwh