Waste heat recovery machine

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Waste heat recovery machine

Cost Comparison of Different Heating Methods for Heating 10m³ of Water

Under the same conditions, 10m³ of water is heated from 20℃ to 55℃, with a temperature rise of 35℃. The required heat for water heating: 10000kg×35℃×1kcal/kg=350000kcal

表格

Heating Method	Electric Heating	Oil-Fired Boiler	Natural Gas	Solar-Assisted Electric	Air Source Heat Pump	Air Compressor Waste Heat Recovery Unit
Energy Type	Electricity	Oil	Natural Gas	Electricity	Electricity	None
Environmental Pollution	None	Yes	None	None	None	None
Hazard Level	Yes	High	High	None	None	None
Equipment Life	12-15 years	5-8 years	5-8 years	10-12 years	12-15 years	12-15 years
Calorific Value	860kcal/kwh	10200kcal/kg	8500kcal/kg	920kcal/kwh	860kcal/kwh	860kcal/kwh
Energy Consumption for Producing 10m³ Hot Water	455kwh	68kwh	65kwh	236kwh	228kwh	0kwh
Energy Unit Price	0.8 yuan/kwh	7.8 yuan/kwh	7.5 yuan/kwh	0.8 yuan/kwh	0.8 yuan/kwh	0 yuan/kwh
Cost of 1m³ Hot Water	38.7 yuan/m³	55.3 yuan/m³	48.6 yuan/m³	19.1 yuan/m³	18.3 yuan/m³	Save at least 18.3 yuan/m³
Average Thermal Efficiency	95%	85%	90%	98%	350%	200%
Daily Cost of Producing 10m³ Hot Water	387.0 yuan	553.0 yuan	486.0 yuan	191.0 yuan	183.0 yuan	Save at least 183.0 yuan
Annual Cost (365 days)	141255 yuan	201845 yuan	177390 yuan	69715 yuan	66795 yuan	Save at least 66795 yuan

Product Name	Advantages	Disadvantages
Air Compressor Waste Heat Recovery	① Provides required hot water free of charge 24 hours a day ② Can heat up quickly in a short period of time ③ Can reduce a series of faults caused by high temperature in summer, such as lubricating oil carbonization, rubber oil pipe aging, and shaft oil seal leakage of air compressors, thereby reducing maintenance costs ④ Temperature can be raised to 75℃ ⑤ No additional power source is needed in the later stage	① Requires a one-time initial investment, and has high technical requirements for air compressors ② Requires a professional automatic control switching system ③ Cannot provide thermal energy during holidays, auxiliary heating is needed
Solar Energy	① Absorbs solar heat ② Provides thermal energy free of charge ③ Simple system structure	① Cannot heat up in winter or rainy days, requires electric heating, which consumes a lot of electricity ② Cannot provide rapid heating in a short period of time ③ High initial investment cost ④ Temperature can reach 50-80℃
Direct Electric Heating	① Compared with electric heating, it has better thermal utilization efficiency with an energy-saving effect of 300%-40% ② Can continuously heat hot water 24 hours a day ③ Simple system structure	① Requires continuous consumption of a large amount of electricity ② High initial investment cost ③ High maintenance cost in the later stage ④ Cannot provide rapid heating in a short period of time
Air Source Heat Pump	① Provides hot water 24 hours a day ② Low initial investment cost ③ Temperature can be raised to 85℃ at most	① Consumes electricity
Diesel Boiler Heating	① Provides hot water 24 hours a day ② Low initial investment cost ③ Temperature can be raised to 85℃ at most	① Consumes a large amount of diesel, causing environmental and air pollution in the dormitory area ② High maintenance cost

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