Heat recovery system employing a temperature controlled variable speed fan
Patent
·
OSTI ID:5502560
A heat recovery system is described for use in recovering heat from an industrial process producing a heated fluid comprising: a source of inlet air; a housing coupled to the source and including a heat exchanger; means for passing the heated fluid through the heat exchanger; the housing including means for moving a variable volume of air adjustable over a continuous range from the source through the heat exchanger; air discharge means communicating with the housing for discharging air which has passed through the heat exchanger; a control system including first temperature sensing means for sensing the discharge temperature of the discharge air moving through the discharge means and a control circuit coupled to the first temperature sensing means and to the moving means for varying the volume of air moved in response to the sensed discharge temperature to control the temperature of discharge air passing through the discharge means at a first predetermined value; and the control system including second temperature sensing means for sensing the temperature of the source of inlet air and valve means coupled to and controlled by the control circuit to cause liquid to bypass the heat exchanger when the inlet air temperature rises above a second predetermined value.
- Assignee:
- Plant Specialties Co., Grand Rapids, MI
- Patent Number(s):
- US 4589475
- OSTI ID:
- 5502560
- Country of Publication:
- United States
- Language:
- English
Similar Records
Cooling means for a water-filled ash hopper
Water to air heat pump employing an energy and condensate conservation system
Indirectly heated gas turbine engine
Patent
·
Tue Jul 22 00:00:00 EDT 1980
·
OSTI ID:5010924
Water to air heat pump employing an energy and condensate conservation system
Patent
·
Wed Jul 10 00:00:00 EDT 1974
·
OSTI ID:7355489
Indirectly heated gas turbine engine
Patent
·
Tue Aug 09 00:00:00 EDT 1988
·
OSTI ID:6811551
Related Subjects
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320303 -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Equipment & Processes
320304* -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Waste Heat Recovery & Utilization
AIR FLOW
BLOWERS
CONTROL
CONTROL EQUIPMENT
CONTROL SYSTEMS
ELECTRONIC CIRCUITS
ENERGY RECOVERY
EQUIPMENT
FLOW REGULATORS
FLUID FLOW
GAS FLOW
HEAT EXCHANGERS
HEAT RECOVERY
HEAT RECOVERY EQUIPMENT
INDUSTRIAL PLANTS
RECOVERY
SPEED REGULATORS
TEMPERATURE CONTROL
TEMPERATURE MEASUREMENT
VALVES
WASTE HEAT UTILIZATION
WASTE PRODUCT UTILIZATION
320303 -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Equipment & Processes
320304* -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Waste Heat Recovery & Utilization
AIR FLOW
BLOWERS
CONTROL
CONTROL EQUIPMENT
CONTROL SYSTEMS
ELECTRONIC CIRCUITS
ENERGY RECOVERY
EQUIPMENT
FLOW REGULATORS
FLUID FLOW
GAS FLOW
HEAT EXCHANGERS
HEAT RECOVERY
HEAT RECOVERY EQUIPMENT
INDUSTRIAL PLANTS
RECOVERY
SPEED REGULATORS
TEMPERATURE CONTROL
TEMPERATURE MEASUREMENT
VALVES
WASTE HEAT UTILIZATION
WASTE PRODUCT UTILIZATION