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Thesis Question
What is the most efficient waste heat recovery method for homes in Kamloops. (existing or new builds)
Abstract Rough Draft
This is my analytical report, abstract outline rough draft; the technology I am researching has been foolishly ignored for too long. This report will be useful for home builders wanting to take an aggressive approach to GREEN initiatives.
Abstract Outline – Waste Heat Recovery
The priority of being energy efficient is becoming increasingly more important to the global community. This over-looked technology could save billions of dollars around the world, within any application where heat is produced as a bi-product. Waste heat recovery innovations are continuously being thought of, designed, and tested for several applications.
Project: Determine the most efficient waste heat recovery process for residential building applications in Kamloops.
Heating of buildings can be accomplished through;
Geo-thermal systems
Boiler HVAC systems
Natural Gas Furnaces
Waste heat recovery systems
Method:
To determine the most beneficial use of waste heat recovery in residential applications, the examination of the following will need to take place:
1. Environment Impacts
The use of a waste heat recovery system drastically reduces the amount of fossil fuels or electricity required for heating a house. Therefore, a recovery system enables a house to decrease its carbon footprint substantially.
2. Construction Costs
The installation of a waste heat recovery system would increase costs minimally; however, the money spent initially would be recovered quickly through decreased energy consumption.
3. Energy Savings
Through the use of waste heat recovery from various sources such as AC units, furnaces, and hot water drains; houses and entire neighborhoods will see savings of huge numbers on all energy bills.
Special Problem
Require a way of accurately measuring energy savings, by looking at initial costs then subtracting the savings through waste heat recovery. The lack of this equation is due to minimal use of renewable energy technologies.
A formula has been derived for heat recovery from heat treatment furnaces. For example a heat treatment furnace has exhuast gas leaving the furnace at 1000*C @ 2200 cubic meters per hour. At 150*C final exiting exhuast temperature the total heat recovered can be calculated as follows.
Q = V x p x Cp x delta T
where:
Q = heat content in kCal
V = flowrate of the substance in cubic meters/hr
p = rowe, density of the flue gas in kg/cubic meter
Cp = specific heat of the substance in kCal/kg *C
delta T = temperature difference in *C
Cp = 0.24 kCal/kg/*C
Q = 2200 x 1.19 x 0.24 x (1000-150)
= 534072 kCal/hr
What is the most efficient waste heat recovery method for homes in Kamloops. (existing or new builds)
Abstract Rough Draft
This is my analytical report, abstract outline rough draft; the technology I am researching has been foolishly ignored for too long. This report will be useful for home builders wanting to take an aggressive approach to GREEN initiatives.
Abstract Outline – Waste Heat Recovery
The priority of being energy efficient is becoming increasingly more important to the global community. This over-looked technology could save billions of dollars around the world, within any application where heat is produced as a bi-product. Waste heat recovery innovations are continuously being thought of, designed, and tested for several applications.
Project: Determine the most efficient waste heat recovery process for residential building applications in Kamloops.
Heating of buildings can be accomplished through;
Geo-thermal systems
Boiler HVAC systems
Natural Gas Furnaces
Waste heat recovery systems
Method:
To determine the most beneficial use of waste heat recovery in residential applications, the examination of the following will need to take place:
1. Environment Impacts
The use of a waste heat recovery system drastically reduces the amount of fossil fuels or electricity required for heating a house. Therefore, a recovery system enables a house to decrease its carbon footprint substantially.
2. Construction Costs
The installation of a waste heat recovery system would increase costs minimally; however, the money spent initially would be recovered quickly through decreased energy consumption.
3. Energy Savings
Through the use of waste heat recovery from various sources such as AC units, furnaces, and hot water drains; houses and entire neighborhoods will see savings of huge numbers on all energy bills.
Special Problem
Require a way of accurately measuring energy savings, by looking at initial costs then subtracting the savings through waste heat recovery. The lack of this equation is due to minimal use of renewable energy technologies.
A formula has been derived for heat recovery from heat treatment furnaces. For example a heat treatment furnace has exhuast gas leaving the furnace at 1000*C @ 2200 cubic meters per hour. At 150*C final exiting exhuast temperature the total heat recovered can be calculated as follows.
Q = V x p x Cp x delta T
where:
Q = heat content in kCal
V = flowrate of the substance in cubic meters/hr
p = rowe, density of the flue gas in kg/cubic meter
Cp = specific heat of the substance in kCal/kg *C
delta T = temperature difference in *C
Cp = 0.24 kCal/kg/*C
Q = 2200 x 1.19 x 0.24 x (1000-150)
= 534072 kCal/hr
WASTE HEAT RECOVERY
Heat losses must be minimized before waste heat recovery is investigated. The most commonly used waste heat recovery methods are preheating combustion air, steam generation and water heating, and load preheating.
BENEFITS FOR FURNACE RECOVERY
Benefits of waste heat recovery include:
• Improved heating system efficiency. Energy consumption can typically be reduced 5% to 30%
• Lower flue gas temperature in chimney. Less heat is wasted.
• Higher flame temperatures. Combustion air preheating heats furnaces better and faster.
• Faster furnace startup. Combustion air preheating heats furnaces faster.
• Increased productivity. Waste heat used for load preheating can increase throughput.
Potential Applications
Waste heat recovery should generally be considered if the exhaust temperature is higher than 1,000°F, or if the flue gas mass flow is very large.
Waste Heat Recovery Shower Innovation
System Cycle
THE EVER-HOT LINE OF TANKLESS WATER HEATERS
No need for hot water re-circulation
THE EVER-HOT LINE OF TANKLESS WATER HEATERS
Available in two residential and two commercial models, both with indoor and outdoor versions with Btu inputs ranging from 15,000 to 180,000 for indoor models and 15,000 to 199,000 for outdoor models. Indoor models come with an integrated digital controller.
Available in two residential and two commercial models, both with indoor and outdoor versions with Btu inputs ranging from 15,000 to 180,000 for indoor models and 15,000 to 199,000 for outdoor models. Indoor models come with an integrated digital controller.