Exhaust Gas Heat Exchanger

Minimum Rating:
9.5 kW
Maximum Rating:
673 kW

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Operating Limits Specification

Maximum Working Gas Side Pressure	0.5 bar
Maximum Working Water Side Pressure	4 bar
Maximum Working Gas Side Temperature	700°C
Maximum Working Water Side Temperature	110°C
Pressure Equipment Directive	Article 3 Paragraph 3 (Sound Engineering Practice)

Product Range Guide

Type	Typical Engine Power (kW)	Exhaust Gas Flow (kg/min)	Exhaust Gas Outlet Temp (°C)	Heat Recovery (kW)	Exhaust Gas Pressure Drop (kPa)
2-25-3737-4	16	1.2	210	9.5	1.6
2-32-3737-5	16	1.2	170	11.5	1.8
3-32-3738-5	32	2.4	198	19	1.2
3-40-3738-6	32	2.4	163	21	1.3
3-60-3738-8	32	2.4	116	23	1.6
4-32-3739-5	60	4.5	199	36	1.0
4-40-3739-6	60	4.5	164	39	1.2
4-60-3739-8	60	4.5	116	43	1.4
5-32-3740-5	90	6.7	195	55	1.0
5-40-3740-6	90	6.7	161	59	1.1
5-60-3740-8	90	6.7	115	65	1.4
6-32-3741-5	140	10.5	197	85	1.0
6-40-3741-6	140	10.5	163	92	1.2
6-60-3741-8	140	10.5	117	101	1.4
8-32-3742-5	250	18.7	199	151	1.0
8-40-3742-6	250	18.7	164	163	1.2
8-60-3742-8	250	18.7	117	180	1.4
10-32-3743-5	400	30.0	200	241	1.1
10-40-3743-6	400	30.0	164	262	1.2
10-60-3743-8	400	30.0	116	289	1.4
12-32-3744-5	600	45.0	199	362	1.1
12-40-3744-6	600	45.0	164	392	1.2
12-60-3744-8	600	45.0	117	432	1.5
15-32-5745-5	950	70.0	200	563	1.0
15-40-5745-6	950	70.0	165	610	1.1
15-60-5745-8	950	70.0	116	673	1.4

Bowman Waste Heat Recovery Technology

The Bowman Exhaust Gas Heat Exchangers (EGHE) are designed to recover valuable waste heat energy from the exhaust stream of engine-powered Combined Heat & Power (CHP) systems. By harvesting this energy source, the overall efficiency of a generating set can be elevated from approximately 30% (power only) up to 80%+ when combined with heat recovery from other engine areas.

Key Benefits

Elevated Gen-set Efficiency
- Increases overall gen-set efficiency to 80% and beyond by reclaiming up to 50% of the fuel input as valuable heat energy.
- Harvests energy at no additional fuel cost or CO2 generation.
High-Quality Structural Integrity
- Fully welded, all stainless steel construction handles extreme exhaust gas temperatures.
- Automated tube end welding and 100% inspection ensure maximum reliability.
Ease of Maintenance
- Renowned shell and tube design combines excellent heat transfer performance with simple maintenance.
- Right angle end cover options allow tubes to be cleaned without disrupting surrounding pipework.
Versatile Application Choice
- Suitable for engines up to 1MW using Biogas, Diesel, or Natural Gas.
- Extensively proven in commercial, industrial, space heating, and district hot water installations globally.

Key Features

Shell and Tube Design: Time-proven configuration facilitating highly efficient heat transfer and straightforward physical installation.
PN6 Flanges: Built to BS EN1092 on end cover and shell side connections for easy system integration.
Integrated Pressure Relief Valve: Automatically activates if pressure exceeds 4 bar on the shell/water side as an inherent safety feature.
Comprehensive Specifications: Supplied with standard mounting brackets, drain plugs, and dedicated bosses for vents and temperature sensors.

Core Heat Exchanger Unit

Fully welded, all stainless steel shell and tube core
Automated tube end welded connections
Standard integrated mounting brackets
Drain plugs
Bosses for vents and temperature sensors

Safety Systems

Factory-fitted water/shell side Pressure Relief Valve (4 bar activation threshold)

Flanges & Interfaces

PN6 configuration flanges to BS EN1092 on shell connections

Installation Configuration Options

Without end covers (for direct welding/connection into customer pipework)
Straight end covers (with PN6 flange connections)
90° Right angle end covers (rotatable to minimize packaging size and pipework requirements)