Dignity. Technology. Sustainability. — Redefining the Afterlife Industry.
Dignity. Technology. Sustainability. — Redefining the Afterlife Industry.
Green Cremation & Environment
Cremation Heat Recovery (Dual-Carbon)
A cremation stack is also a heat source with nowhere to go. This project turns the waste heat in the flue gas into cooling for the cremation hall itself — non-electric air conditioning, paid for by energy the plant was already throwing away.
MCA 101 Research InstitutePartner
Non-electric coolingOutput
Waste heatDriver
01 What it solves
Cremation equipment consumes energy and produces high-temperature flue gas. That gas has to be cooled before it can be treated and discharged, and the cooling is usually treated purely as a cost — an energy input to solve a disposal problem.
Meanwhile the cremation hall is one of the hottest, most uncomfortable working environments in the building, which shortens equipment life, raises fault rates and affects the people working in it. Two problems are being solved separately when one could pay for the other.
02 What the solution includes
Waste heat as the energy source
High-temperature flue gas from the cremation process is used as the driving energy for the refrigeration cycle.
Absorption refrigeration
A lithium-bromide absorption chiller converts the heat into cooling, with no electric compressor in the loop.
Cooling for the cremation hall
The recovered cooling is delivered to the cremation hall as non-electric air conditioning, lowering the hall temperature.
Fewer faults, safer work
A cooler hall means fewer equipment faults and accidents and a more comfortable working environment for frontline staff.
Shorter exhaust train
Cooling the high-temperature gas in the duct reduces the load on the downstream treatment equipment, allowing that equipment to be simplified.
Faster quench, lower formation
Rapid temperature reduction shortens the window in which pollutants can form.
03 How it works
The system takes heat that would otherwise be rejected and returns it to the building as cooling.
01
Collect
High-temperature flue gas from the cremator is captured through a heat exchanger in the exhaust path.
02
Transfer
Heat is transferred to a hot-water circuit and carried to a high-temperature water tank.
03
Convert
The lithium-bromide absorption chiller uses that heat to drive the refrigeration cycle.
04
Distribute
Cooling is delivered to the cremation hall through supply air conditioning.
05
Cool the gas
The flue gas itself leaves the heat exchanger at a reduced temperature, easing the downstream purification duty.
06
Circulate
Circulation pumps return the cooled water to the heat exchanger, and the cycle repeats.
04 What was delivered
The project was a research and development upgrade led by the Ministry of Civil Affairs 101 Research Institute, aimed at the energy waste, environmental load and oversized post-treatment equipment that existed in cremation operation at the time.
- Civil construction works
- Full installation of the system
- Manufacture of part of the supporting equipment
Why this matters to a buyer
It is not a retrofit sold from a catalogue — it was developed with the national research institute as the demonstration project, and the delivery covered civil works, installation and equipment manufacture together. That is the same turnkey pattern used on our other solution scopes.
05 Technical basis
The project is aligned to national energy-saving and emission-reduction policy for the funeral sector, and to the emissions standards governing the upstream cremation process.
| Standard / policy | Subject |
|---|---|
| GB 13801-2015 | Emission limits for cremator flue gas |
| GB 50019-2016 | Design of heating, ventilation and air conditioning |
| GB 50189-2015 | Energy-efficiency design for public buildings |
| GB 50016-2019 | Fire protection design for buildings |
| Dual-carbon policy | Energy saving and emission reduction in funeral facilities |
Conditions to check before committing
Heat recovery depends on the number of furnaces in service, how continuously they run, and whether the cremation hall can accept cooling through air. These are established at survey stage; a site with intermittent single-furnace operation will not recover enough heat to justify the plant.
06 Where it applies
The system is scoped to facilities with sustained cremation throughput and a hall that needs cooling.
Cremation hallsMulti-furnace cremation plantExhaust treatment plantCremation hall air conditioning
07 Selected references
Ministry of Civil Affairs 101 Research InstituteCooperative development project — cremator waste-heat recovery experimental unit upgrade
Entrovita scopeCivil works, full installation and manufacture of part of the supporting equipment
National evaluation, 2024Expert panel judged the company's intelligent operation system and application to reach leading domestic level, with cremation and refrigeration technology assessed as internationally advanced
This is the company's flagship cooperative research project in green cremation.
09 Questions buyers ask
Is this suitable for a single-furnace funeral home?
Usually not. The economics depend on sustained throughput. A single furnace running intermittently will not produce enough recoverable heat to justify the plant, and we will say so rather than sell it into an unsuitable site.
Does the recovered cooling replace the hall's existing air conditioning?
It supplies cooling to the cremation hall. Whether it can replace or only reduce the demand on the existing system depends on the hall's cooling load and the heat available, which is calculated at design stage.
How does this help with emissions?
Two ways. Cooling the flue gas in the duct reduces the load on downstream treatment equipment, and brings the gas temperature down quickly — which limits the window in which dioxins can form.
Is this an off-the-shelf product?
No. It is an engineered project developed with the Ministry of Civil Affairs 101 Research Institute, delivered as civil works, installation and supporting equipment manufacture together.
Where to go next
Scope this solution for your project.
Send the site, the zones and the stage you are at. We reply with what we would deliver, which interfaces we would own and the standards we would build to.