What does EnerTherm Engineering do?

EnerTherm Engineering is a UK-based industrial engineering company that designs and delivers thermal process solutions, energy auditing services, and bespoke thermal equipment for manufacturing and process industries. Services include energy audits, pinch analysis, process modelling, thermal design simulation, and project management.

What thermal products does EnerTherm Engineering manufacture?

EnerTherm Engineering manufactures process heaters, heat exchangers, thermal oxidisers, incinerators, condensers, dehydrators, and the Omni Vision industrial energy intelligence platform. All products are custom-designed for specific industrial applications and process requirements.

Does EnerTherm Engineering provide energy auditing services?

Yes. EnerTherm Engineering provides comprehensive energy audits, heat loss audits, and pinch analysis to identify energy waste, quantify potential savings, and prioritise capital investments in industrial facilities across sectors including chemical, pharmaceutical, food & beverage, and manufacturing.

What industries does EnerTherm Engineering serve?

EnerTherm Engineering serves chemical processing, pharmaceutical, food & beverage, oil & gas, power generation, automotive, textile, paper & pulp, general manufacturing, waste management, agriculture, healthcare, and mining & metals industries.

Where is EnerTherm Engineering located?

EnerTherm Engineering is headquartered in the United Kingdom and provides engineering services and thermal equipment to clients internationally.

Can EnerTherm Engineering help with industrial decarbonisation?

Yes. EnerTherm Engineering specialises in waste heat recovery system design, process optimisation for energy reduction, and net zero carbon roadmapping. They also provide ISO 14001 and ISO 50001 compliant energy management strategies.

does EnerTherm Engineering offer CFD simulation and thermal modelling?

Yes. EnerTherm Engineering provides Computational Fluid Dynamics (CFD) and Finite Element Analysis (FEA) for thermal equipment design. These simulations validate heat transfer performance before fabrication, reducing costly physical prototyping.

What is a thermal oxidiser and does EnerTherm Engineering supply them?

A thermal oxidiser is an industrial system that destroys volatile organic compounds (VOCs) and hazardous air pollutants (HAPs) through controlled high-temperature combustion. EnerTherm Engineering designs and manufactures regenerative, recuperative, and direct-fired thermal oxidisers for chemical, pharmaceutical, and manufacturing industries.

Does EnerTherm Engineering design custom process equipment?

Yes. EnerTherm Engineering provides bespoke engineering design of process vessels, heat exchangers, reactors, and thermal treatment systems from concept through to fabrication-ready drawings, as well as rapid prototyping and pilot plant commissioning.

What is EnerTherm Engineering's Omni Vision platform?

Omni Vision is EnerTherm Engineering's industrial energy intelligence platform. It provides turnkey utility metering, CO2 tracking, and AI-powered production KPI intelligence for industrial compliance monitoring and operational optimisation.

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[Conduction]

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Embedded Cylinder

Shape factor and heat rate for an isothermal cylinder buried in a semi-infinite medium.

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Part of EnerTherm's free calculator suite — the same methods we use on live industrial projects.

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A buried pipe's heat loss needs no mesh or simulation — a conduction shape factor reduces the whole 3-D problem to one multiplication: Q = S · k · ΔT.

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Figures assume typical conditions and the stated method. For measured, guaranteed numbers on your plant, our engineers run site surveys, heat loss audits, and full process models.

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Embedded Isothermal Cylinder

Calculates the shape factor $S$ and heat transfer rate $Q$ for an isothermal cylinder of length $L_{c}$ and diameter $D$ buried at depth $d$ (to the cylinder centre) in a semi-infinite medium of conductivity $k$ , below an isothermal surface at temperature $T_{2}$ .

The governing relationship is:

Q = S \cdot k \cdot (T_{1} - T_{2})

where $T_{1}$ is the cylinder temperature and $S$ is selected from three cases.

Shape Factor Cases

Case 1 — Long cylinder ( $L_{c} \geq 10 r$ ), depth ≥ length ( $d \geq L_{c}$ ):

S = \frac{2 π L _{c}}{cosh ^{- 1} ( d / r )}

Case 2 — Long cylinder ( $L_{c} \geq 10 r$ ), deep burial ( $d > 3 r$ ):

S = \frac{2 π L _{c}}{ln ( 2 d / r )}

This is an approximation valid when $d / r ≫ 1$ , where $cosh^{- 1} (d / r) \approx ln (2 d / r)$ .

Case 3 — Deep slender burial ( $d \geq 10 r$ , $L_{c} \geq 10 d$ ): not implemented (formula was image-only in source).

Thermal Resistance

R = \frac{1}{k \cdot S} [K/W]

Reference

Holman, J. P., Heat Transfer, 7th ed., McGraw-Hill, 1990, pp. 74–83.

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Frequently asked questions

Shape factor and heat rate for an isothermal cylinder buried in a semi-infinite medium. Enter your inputs and press Calculate — the worked solution shows every step of the method with your numbers substituted in.

The conductivity of the medium between the two isothermal surfaces — soil or concrete for buried objects, the layer material for walls. The tools include a table of common materials; use a measured value when you have one, since soil conductivity especially varies with moisture content.

For geometries within their validity limits they typically agree with full numerical solutions to within a few percent. The worked solution reports which case or correlation was applied, so you can check the limits against your geometry.