Heat Pump Essay

3545 words - 15 pages

february 2004 • tec 6 • SuMMary

a N IN trODuct ION tO G rO u N D S O u rc e Heat P uMP SyS teM S
chris arkins
This note TEC 6, originally published in February 1999, was reviewed by Chris Arkins in January 2004. This summary page includes recent updates to the topic since publication.

SUMMARY OF

actIONS tOwarDS SuStaINable OutcOMeS
Introduction
Alternative low energy air conditioning solutions are now commonly sought in preference to typical air conditioning systems for both residential and commercial applications. The industry has seen a growing emergence of ground source heat pump (GSHP) installations throughout Australia over the last five years. A broad spectrum of ...view middle of the document...

Environmental Benefits
• Water Efficiency – Ground heat exchangers require no make up water, hence significant water savings are achieved when compared to cooling tower systems that rely on the evaporation of water and the subsequent cooling effect to reject heat from the water. Low maintenance – Ground heat exchangers require no regular chemical dosing or make up water. Energy efficiency – Ground source heat pumps achieve greater efficiencies due to constant return water temperatures from the ground. With air cooled equipment, efficiency varies with changes in ambient air temperature. On hot days, air cooled systems are less efficient as more energy is required to achieve the same cooling effect. Flexibility – Ground source heat pumps can adapt to residential and commercial buildings. They can be placed in new buildings or used as retrofits in existing buildings. Carbon dioxide emissions – Use of fossil fuels is reduced due to the energy efficient operation. Energy costs – energy costs are reduced by 10 to 30%. Aesthetics – Noise and visual exposure associated with roof top equipment is eliminated. Legionnaires’ control – Since cooling towers do not form part of the system, the risk of Legionnaires’ disease is eliminated. Ground source heat pumps are therefore particularly attractive for health care facilities.

• •

• • • • •

changes in the Industry
The principles of GSHPs have not changed, however the following indicative costs reflect current market costs compared to those published in the previous note. Installation costs vary according to site conditions, site accessibility, ground structure, size of heat exchanger and appointed contractor. The following unit rates are suitable for preliminary costing purposes. Final costing should obviously be confirmed by a qualified professional for each specific project. For drilling, piping and grouting of vertical bore holes, horizontal header pipework and horizontal trenching from the building line to the ground heat exchanger field, allow around $45 to $50 per meter of pipe.

february 1999 • tec 6 • PaGe 1

a N IN trODuct ION tO G rO u N D S O u rc e Heat P uMP SyS teM S
chris arkins
Alternative low energy air conditioning solutions are now commonly sought in preference to typical air conditioning systems for both residential and commercial applications. Whilst still a developing market in Australia, ground source heat pumps (GSHP) offer environmental advantages over more commonly used air conditioning systems. This Note introduces the GSHP and provides an overview of applications, benefits and system types.

1.0 INtrODuctION
Heat rejection is fundamental to all air conditioning systems. Whilst ground heat rejection, or geothermal heat rejection as it is commonly called, is seldom used in Australia, it is not a new technology and has been used for many years in other countries. Ground source heat pumps have often been misunderstood or misapplied. This has led to...

Other Papers Like Heat Pump

Green Energy Essay

762 words - 4 pages , a water pump for example. At the moment, wind power is not used as much as it should be because of 25% of people in the UK who are against the idea. Some don't want wind turbines because…… * They are very tall and would spoil views. * A lot of noise is produced due to the rotating blades. * Because they are so big and usually part of a farm, a lot of space is needed. * They work best at sea so the beaches we have

Energy Essay

763 words - 4 pages potential energy that is absorbed or released by chemical reactions. Dried wood stores chemical energy and when burned, releases chemical energy that converts to heat and light. Radiant energy is energy that travels through space. An example of radiant energy would be light. The light from the sun makes it possible for living things to live on earth by providing fuel and warmth. Electrical energy is a form of energy from electromagnetic interactions

Sales Data

5476 words - 22 pages is Petrol Pump ? • The most common point of contact of customers with Oil Industry is the Petrol Pump. In Oil Industry parlance, Petrol Pumps are referred to as Retail Outlets (ROs). • As per the existing Government policy, Petrol Pumps can be set up by Public Sector Oil Companies as well as Private Sector Oil Companies dealing in storage and distribution of petroleum products as per guidelines. Presently, the Oil Companies

English Debate: The Need For Alternative Energy Resources

759 words - 4 pages it is harder to find which means it costs more money for the government to put it into production, thus hiking up taxes for the everyday American while prices at the pump increase as well. This is taking money out of everyone’s pocket and hurting the economy. lll. Third main change: people everywhere need to start using and incorporating renewable resources into their lives. It will increase their cost effiency and make their world a cleaner

Environmental Toxicology Paper

1424 words - 6 pages difference there is in this concentration, the greater chance there is of the chemical diffusing to the inside of the cell. Facilitated diffusion happens when carrier proteins transport water soluble chemicals across the membrane. The chemicals are, once again, moving from a higher concentration to a lower concentration. Active transport is when a chemical is moving against a concentration gradient. A membrane pump is such as the sodium/potassium

Metallurgy And Materials Engineering

1412 words - 6 pages casting is typically used for high-end castings. For aluminum alloys typical parts include engine suspension mounts, air manifold sensor harness, engine blocks and oil pump filter housing. For magnesium alloys, semi-solid casting is typically used to produce extremely thin walled castings, such as computer and camera bodies. Process There are a number of different techniques to produce semi-solid castings. For aluminum alloys the more common

Hrmt Case

1776 words - 8 pages ‐ Power used to Common Rail Common rail permits the continuous and load‐independent control of fuel injection timing, injection pressure, and injection volume. The common rail system comprises pressurizing fuel pumps, fuel accumulators, and electronically controlled fuel injectors. The fuel pumps are driven by the camshaft and each pump and accumulator serve two cylinders. All system functions are controlled by the embedded control system on the

Logistics

1118 words - 5 pages functions. The product is impervious to humidity, heat and/or cold conditions. With the product being sold to industrialized and commercial operations, there are no buyer preferences that must be acknowledged in this new buyer group. There are no product size, packaging or color preferences that need to be addressed. There are no outside preferences that will influence buying decisions. Cultural aspects might influence acceptance of the

Gas And Oil Prices: Present And Our Future

1960 words - 8 pages is all taken into consideration the gasoline is taxed by not only the federal government, but the individual state place their own taxes on these products. This is more complex than most average consumer’s runs through his or her mind while standing at the pump looking at higher gas prices and trying to figure out where these prices come from.      After all these elements are taken into consideration, it doesn't fully explain where the money

Insurance Junk

1947 words - 8 pages located on the insured’s premises. One fireplace is inside the home, although it is not the primary source of heat and the other fireplace is in the outdoor kitchen. Chimney’s can clog and cause smoke to back up inside the home. They should be cleared frequently by a professional chimney sweep. The insured also has a dog. Dogs are an exposure because they could bite neighbors or people visiting the home. Our insured would be liable for any

Computer Shopper

6841 words - 28 pages . Date Principle Designer Name Run Initiation Time: 29-Jul-2010 @ 10:40:30 AM eQUEST 3.64 using D2Comply-3.64 / DOE-2.2-47h2 Review Copy Page: 1 of 22 PRELIMINARY REPORT Project Name (Part 2 of 3) Date T2408SamplePrelim 29-Jul-2010 ANNUAL TDV ENERGY USE SUMMARY (TDV-kBtu/sqft-yr) ENERGY COMPONENT Space Heating Space Cooling Indoor Fans Heat Rejection Pumps Domestic Hot Water Lighting Receptacle Process Exterior Usage

Related Essays

Ch 8 On Internal Combustion Essay

568 words - 3 pages - Heat normally flows from a hotter object to a colder object Fog Occurs naturally when humid air experiences a sudden drop in temperature Section 8.1 Air Conditioners Removes some thermal energy but cant make it disappear. It transfers thermal energy from the cooler room air to the warmer air outside Moving Heat Around: Thermodynamics An air conditioner transfers heat against its natural direction of flow. Heat pump- a device that

Heat Exchangers Essay

4745 words - 19 pages gasketed plate heat exchangers, where plates can often be added or removed to achieve the desired heat transfer area. In many cases, plate heat exchangers are oversized simply to reduce the pressure drop for the secondary fluid. On existing plant, an indication of actual load may be obtained if the flow and return temperatures and the pumping rate are known. However, it is important to note that throughput as given on the pump maker's plate will

350z Custom Car Infor Essay

278 words - 2 pages * Cast Ductile Iron Exhaust Manifolds And Turbine Housing * Pre-Bent Stainless Steel Heat Shields * Exhaust Manifold Install Hardware Kit * 4-Ply High Resistance Nomex Silicon couplers * Stainless Steel T-Bolt clamps * 3.5 x 13 x 24 Bar and Plate Core Intercooler Rated 1000hp * GTM Steering Coupler * Polished Stainless Steel and Tig Welded Piping * Pre-made steel braided oil and coolant Supply & Return

Physics Essay

593 words - 3 pages States is ____________________.  | Short Answer Type your answer in the in the space below the question. Do not use the internet, please use ONLY the textbook to create your solutions. Do not use outside sources.  |   |  11.  | Identify two types of nuclear reactions in which the equation E = mc2 applies.  |   |  12.  | Based on how the book describes a heat pump in Sec 16.3, how does a heat pump prove the law of conservation of energy