harlan wyton heating review proposal r1

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Harlan Labs, Wyton Heating Review Proposal

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Harlan Labs, Wyton

Heating Review Proposal

NAME: Mir Ali

Date: 06/08/2012

Project No. 12138

Rev R1


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Contents

1 Harlan Labs Heating Review............................................................................................................... 3

Executive Summary ............................................................................................................................... 3

Background ............................................................................................................................................... 3

1.1

Project Development ................................................................................................................. 3

a. Energy Efficient AHUs for buildings: ...................................................................................... 4

b. Replacing existing Burners with new energy efficient Burners: ........... ........... ........ 4

c) DX Cooling Units ................................................................................................................................. 5

d) Sustainability Project: ............................................................................................................... 5

PC Sums ...................................................................................................................................................... 5

1.2 Programme .................................................................................................................................... 6


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1 Harlan Labs Heating Review

Executive Summary:

Heating for the various buildings at Harlan Labs, Wyton is provided by a number of gas fired burners

located in the AHU providing tempered air to the buildings. A site wide energy audit was carried out

recently, found that the site does not currently meet the Government and Industry stipulated Guidelines

in some areas.

The Wyton site does not have any form of cooling which would be needed to meet maximum

temperature requirements. Based on the site visit, operational problems with the heating only AHUs

were identified primarily due to the age of the plant.

These AHUs / burnerswere installed in the 1980s and are well past the CIBSE recommended design life

expectancy of 15 years. Due to their present age, the frequencies of maintenance and operational

failures have increased many folds.

Background:

Based on the Home Office (HO) Code of Practice for the housing and care of animals in designated

breeding and supplying establishments, and HO Animals (scientific procedures) Act 1986 Pg 31 requires

some form of cooling to be provided in order to attain temperatures between 15-24 Deg C for beaglesto deal with extremes of temperature.

Due consideration should be made to comply with European regulations when Directive 2010/63/EU will

take full effect from 1 January 2013, these regulations prescribe the temperature, relative humidity,

space ventilation, lighting, and noise levels within these spaces, which require a provisional 1520 ACPH.

Stocking densities should be taken into account when selecting air change rates.

1.1 Project Development

Based on the discussions we had with Harlan team, who have instructed us to look at the existing AHUs

and burners in order to meet regulatory compliance and also to optimise energy consumption at site

through Low energy design.


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The following projects aim to address some maintenance issues at site and also look at reducing energy

consumption at site.

a.

Energy Efficient AHUs for the buildings

b.

Replacing Burners with new energy efficient Burners

c.

Standalone DX systems for the buildings to achieve compliance

d.

Sustainable solutions

a.

Energy Efficient AHUs for buildings:

The AHUs serving thebrood and stock housing and the Whelping Puppies buildings are more than 30

years old and have exceeded their economic lifespan, also these AHUs are not capable of providing 15-

20 AHCP as mandated by the European directive which comes into effect in January 2013.

We would recommend that these be replaced with Low Energy AHUs capable of providing the air

change rate as mandated under the European directive, while incorporating system redundancy to allow

the AHUs to function during downtime.

Deliverables:

HVAC System Schematics & layout plans

Cooling Plant design & options

System Electrical requirements

Initial Scheme design

Capital Plan

Proposal & Business Case

b. Replacing existing Burners with new energy efficient Burners:

The burners serving barriers were installed in the 1980s and are well past the CIBSE recommended

design life expectancy of 15 years.

Due to their present age, the frequencies of maintenance and operational failures have increased many

folds. It is also worth noting that these burners have an efficiency of 60-70%, we would recommend that

these be replaced with energy efficient burners which have an efficiency in excess of 90%, the burners

selected should be fully modulating, have weather compensation and incorporate an intelligent boiler

controller for energy optimised operation, it should be interfaced with the BMS as part of the proposed

works to assist in setting up energy optimisation schedules. This would result in lower energy

consumption and would reflect in lower energy consumption at site.


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c) DX Cooling Units

DX cooling units present a less expensive alternative to incorporate cooling at site in order to achieve

regulatory compliance. However, it should be noted that the electrical supplies at site are stretched

thereby requiring exploring alternatives including reinforcing the electrical supply to site.

There exists an alternative approach to this problem which has been included as a sustainability project.

d)Sustainability Project:

As the site is considering installing cooling to comply with home office regulation along with the fact

that the heaters are in excess of 30 years old and in need replacement, it is therefore recommended

that a gas based heat pump solution providing heating and cooling be explored thereby providing both

heating and cooling at site.

It is worth noting that the electrical infrastructure at site is stretched, any additional cooling demands

for compliance would require additional electrical reinforcements at site. This solution does not require

expensive electrical infrastructure upgrades.

An option to consider would be a Gas based heat pump providing heating and cooling to the buildings.

There exists an opportunity for the site to be totally carbon neutral and also work towards improving

local community relations. While this option is by far more expensive than others investigated, we

believe this would help the site reduce the negative press / publicity it has attracted over sometime

while helping to reduce energy consumption and result in becoming a carbon neutral site. We shall also

review government and other funding sources for the scheme to evaluate payback periods.

We shall also explore an opportunity to seek services of an Energy Supply Company (ESCO), who would

set up the proposed plant and infrastructure while seeking long term energy contracts from the site.

PC Sums

In order to provide some idea of future costs to deliver the project to construction we would

like to provide the following PC sums. We would expect the actual costs to be under these

amounts.

Costs to carry out a heating review, action plan as stated above: 41,600.00 with proposals

mentioned developed to 25% accuracy. This excludes 3,250 for producing Schematic

drawings per Building.


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Scope of Deliverables:

To carry out a survey of boiler systems and proposed deliverables

Wyton Heating Review Scope of deliverables

Action Who When Completed

Detailed survey of AHU and burner system

(Per Building) including current air flow

validation, efficiency checks, pressurerequirements etc

EECO2 ASAP

Produce schematics of each Building EECO2

Assessment of current and future loads (if

fabric improvements adopted)(per Bldg)

EECO2

Review AHU compliance with Home Office

and proposed EU Regulations (Per Bldg)

EECO2

Proposals for new energy efficient burners EECO2

Review of Electrical Infrastructure /

Electrical Survey to support proposed

works

EECO2

Review Sustainability system for costbenefit analysis (Site Wide) EECO2

Engage with Energy Partners / Client EECO2/CFM In above

Scope, programme, costs & benefits to

Harlan Labs.

EECO2/CFM In above

Way Forward:

Issue Order to EECO2 /CFM

Site Project Leader Appointment and key project contacts

EECO2 / CFM to organise and monitor progress

EECO2 will develop Projects as identified above

1.2

Programme

It would take approximately 4-6 weeks from order to carry out all the survey and deliver a detailed

report for rolling out the energy reduction programme.


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harlan wyton heating review proposal r1

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