9 fields per project
Record format
References · Project database
ESP project references: recorded on a stated basis
Every Arrow Energy reference is recorded in the same nine fields: customer (or anonymised class), site, country, fuel, boiler capacity in t/h, gas flow in Nm³/h, scope, inlet and outlet dust in mg/Nm³ at stated O₂, and year. Customers are named only with written permission; the physics is published either way.
mg/Nm³ @ stated O₂, dry
Emission basis, always
170 t/h bagasse boiler
Reference class — sugar, Thailand
250 t/h boiler
Reference class — biomass power, Thailand
01 — The record format
Nine fields, no exceptions
A reference you cannot interrogate is an anecdote. These are built to be interrogated.
Arrow Energy Co., Ltd. records every project reference in the same nine-field format, part of the company's open engineering resources. The fields exist so that a procurement engineer can compare a reference against their own duty in minutes — same units, same emission basis, no prose in between. A record that omits the O₂ reference or the gas flow is not a weaker reference; it is not a reference at all.
| # | Field | Unit / form | Why it is recorded |
|---|---|---|---|
| 1 | Customer, or anonymised class | Name (with written permission) or class | Accountability — or stated anonymity, never vagueness |
| 2 | Site | Plant / location | Ties the record to one physical installation |
| 3 | Country | — | Regulatory regime and fuel context |
| 4 | Fuel | Type + key properties | The fuel decides the dust; see the industry pages |
| 5 | Boiler capacity | t/h | Scales the duty |
| 6 | Gas flow | Nm³/h | The denominator of every sizing figure (SCA = A/Q) |
| 7 | Scope | Supply / retrofit / turnkey | What Arrow was actually accountable for |
| 8 | Inlet / outlet dust | mg/Nm³ @ stated O₂, dry | The result, on a comparable basis |
| 9 | Year | YYYY | Age of the evidence |
Why aren't all customers named?
Because Arrow names a customer only with their written permission — many plants treat emission data and supplier relationships as confidential, and a reference published without consent is a breach of exactly the trust the reference is meant to demonstrate. Records without permission are anonymised by class: industry, country and capacity stay; the name goes. The engineering fields are never blurred.
The policy costs some marketing shine and buys something better: every figure below can be defended in a technical meeting, and a named reference on this site means the customer agreed to stand behind it.
02 — Reference classes
Anonymised reference classes
Three representative classes from the reference list, pending per-record permissions.
The full filterable database is being populated from the permission-flag list: CONFIRM: per-account permission flags from reference list. Until each record's flag is confirmed, three anonymised classes are published with their known figures; unknown fields are marked rather than filled.
Sugar · Thailand
Sugar mill, Thailand — 170 t/h
Fuel: bagasse (~50 % moisture as fired). Boiler capacity: 170 t/h. Gas flow: CONFIRM: gas flow Nm³/h. Scope: CONFIRM: scope of supply. Inlet/outlet: CONFIRM: inlet/outlet mg/Nm³ @ stated O₂. Year: CONFIRM: year.
Dust collection for sugar and bagasse plantsBiomass power · Thailand
Biomass power plant, Thailand — 250 t/h
Fuel: biomass — CONFIRM: fuel mix. Boiler capacity: 250 t/h. Gas flow: CONFIRM: gas flow Nm³/h. Scope: CONFIRM: scope of supply. Inlet/outlet: CONFIRM: inlet/outlet mg/Nm³ @ stated O₂. Year: CONFIRM: year.
Dust collection for biomass power plantsSugar · Colombia
Sugar mill, Colombia — 230 t/h
Fuel: bagasse (~50 % moisture as fired). Boiler capacity: 230 t/h. Gas flow: CONFIRM: gas flow Nm³/h. Scope: CONFIRM: scope of supply. Inlet/outlet: CONFIRM: inlet/outlet mg/Nm³ @ stated O₂. Year: CONFIRM: year.
Dust collection for sugar and bagasse plants03 — Reading the numbers
How to read a reference emission figure
The basis line is not fine print. It is the figure.
How should I compare a reference outlet against my permit limit?
Convert both to the same basis first. A concentration in mg/Nm³ moves with the oxygen reference: correct with the factor (21 − O₂,ref) ÷ (21 − O₂,measured). An outlet of 24 mg/Nm³ at 6 % O₂ dry is a different physical quantity from 24 mg/Nm³ at 11 % O₂ — comparing across bases flatters whoever chose the higher O₂ figure.
Two further cautions. First, reference outlets are measured results for that plant's fuel, load and inlet conditions — they are evidence the physics works, not a promise it transfers unchanged; guaranteed figures are stated per project after the technical assessment, on a stated basis. Second, check the year against the fuel: a 15-year-old reference on the same fuel your plant burns today is often worth more than a recent one on a different dust. How each fuel changes the problem is covered under industrial dust collection by industry, and the sizing arithmetic to interrogate any record is published with worked examples in the ESP efficiency calculators.
FAQ
Engineering questions, answered
Why are customers anonymised in Arrow's reference list?
Because naming a customer requires their written permission, and many plants treat emission data as confidential. Rather than publish names without consent or figures without basis, each record is anonymised by class — for example, a 170 t/h bagasse-fired sugar mill in Thailand — while keeping the engineering fields intact: t/h, Nm³/h, and mg/Nm³ at stated O₂.
What does inlet and outlet mg/Nm³ at stated O₂ mean in a reference?
Dust concentrations are only comparable at the same oxygen reference: diluting flue gas with air lowers mg/Nm³ without removing a single particle. Every Arrow reference states its O₂ basis — 6 % O₂ dry for solid-fuel boilers on this site — so a 24 mg/Nm³ outlet can be compared honestly against any permit or competing measurement.
Can I speak to a reference plant before ordering?
Where the customer has given written permission to be named, yes — contact visits and direct engineer-to-engineer calls are arranged per project. For anonymised records, Arrow can disclose further engineering details (fuel analysis, train configuration, test protocols) without identifying the plant, and can request naming permission for a specific serious enquiry.
Send us your plant data
Fuel, boiler capacity, gas flow, current emission and the limit you must meet. An Arrow engineer replies with a technical assessment basis — not a brochure.